---- Minecraft Crash Report ---- // Surprise! Haha. Well, this is awkward. Time: 2026-02-17 03:19:11 Description: Exception in server tick loop java.lang.NoSuchMethodError: 'boolean net.minecraft.class_2168.method_9259(int)' at knot//link.e4mc.E4mcClient.lambda$registerCommands$0(E4mcClient.java:44) at knot//com.mojang.brigadier.tree.CommandNode.canUse(CommandNode.java:65) at net.minecraft.server.command.CommandManager.deepCopyNodes(CommandManager.java:449) at net.minecraft.server.command.CommandManager.sendCommandTree(CommandManager.java:443) at net.minecraft.server.PlayerManager.sendCommandTree(PlayerManager.java:592) at net.minecraft.server.PlayerManager.sendCommandTree(PlayerManager.java:489) at net.minecraft.server.PlayerManager.onPlayerConnect(PlayerManager.java:192) at net.minecraft.server.network.PrepareSpawnTask$PlayerSpawn.onReady(class_11549.java:198) at net.minecraft.server.network.PrepareSpawnTask.onReady(PrepareSpawnTask.java:91) at net.minecraft.server.network.ServerConfigurationNetworkHandler.onReady(ServerConfigurationNetworkHandler.java:178) at net.minecraft.network.packet.c2s.config.ReadyC2SPacket.apply(ReadyC2SPacket.java:22) at net.minecraft.network.packet.c2s.config.ReadyC2SPacket.apply(ReadyC2SPacket.java:8) at net.minecraft.network.PacketApplyBatcher$Entry.apply(class_11980.java:55) at net.minecraft.network.PacketApplyBatcher.apply(PacketApplyBatcher.java:38) at net.minecraft.server.MinecraftServer.processPacketsAndTick(MinecraftServer.java:1047) at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:771) at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:301) at java.base/java.lang.Thread.run(Thread.java:1583) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.21.11 Minecraft Version ID: 1.21.11 Operating System: Linux (amd64) version 6.12.22+bpo-amd64 Java Version: 21.0.7, Eclipse Adoptium Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium Memory: 235540376 bytes (224 MiB) / 687865856 bytes (656 MiB) up to 6291456000 bytes (6000 MiB) CPUs: 32 Processor Vendor: AuthenticAMD Processor Name: AMD EPYC 4584PX 16-Core Processor Identifier: AuthenticAMD Family 25 Model 97 Stepping 2 Microarchitecture: Zen 3 Frequency (GHz): -0.00 Number of physical packages: 1 Number of physical CPUs: 16 Number of logical CPUs: 32 Graphics card #0 name: unknown Graphics card #0 vendor: unknown Graphics card #0 VRAM (MiB): 0.00 Graphics card #0 deviceId: unknown Graphics card #0 versionInfo: unknown Virtual memory max (MiB): 128559.70 Virtual memory used (MiB): 175055.59 Swap memory total (MiB): 32139.83 Swap memory used (MiB): 6.32 Space in storage for jna.tmpdir (MiB): Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): Space in storage for io.netty.native.workdir (MiB): Space in storage for java.io.tmpdir (MiB): available: 526121.88, total: 539636.88 Space in storage for workdir (MiB): available: 526121.88, total: 846757.13 JVM Flags: 1 total; -Xmx6000M Debug Flags: 0 total; Fabric Mods: cloth-config: Cloth Config v20 21.11.153 cloth-basic-math: cloth-basic-math 0.6.1 config_manager: Config Manager 1.1.1 controlify: Controlify 2.5.2+1.21.11-fabric dev_isxander_libsdl4j: libsdl4j 3.2.18.release-3.2.18-79 dev_isxander_steamdeck4j: steamdeck4j 1.1.7 org_hid4java_hid4java: hid4java 0.8.0 crash_assistant: Crash Assistant 1.10.30 debugify: Debugify 1.21.11+1.0 e4mc: e4mc 6.0.5 folk_sisby_kaleido-config: kaleido-config 0.3.3+1.3.2 entityculling: EntityCulling 1.9.5 transition: TRansition 1.0.11 trender: TRender 1.0.10 fabric-api: Fabric API 0.141.3+1.21.11 fabric-api-base: Fabric API Base 1.0.5+4ebb5c083e fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.114+20dc27073e fabric-biome-api-v1: Fabric Biome API (v1) 17.1.1+4fc5413f3e fabric-block-api-v1: Fabric Block API (v1) 1.1.10+4ebb5c083e fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.39+4ebb5c083e fabric-command-api-v2: Fabric Command API (v2) 2.4.7+6b42a6003e fabric-content-registries-v0: Fabric Content Registries (v0) 10.2.14+4fc5413f3e fabric-convention-tags-v1: Fabric Convention Tags 2.1.55+7f945d5b3e fabric-convention-tags-v2: Fabric Convention Tags (v2) 2.17.3+8ef948ba3e fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.3.23+4ebb5c083e fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 1.8.47+eed0806f3e fabric-data-generation-api-v1: Fabric Data Generation API (v1) 23.4.0+69974c4e3e fabric-dimensions-v1: Fabric Dimensions API (v1) 4.0.28+4fc5413f3e fabric-entity-events-v1: Fabric Entity Events (v1) 3.1.1+1d0ab4303e fabric-events-interaction-v0: Fabric Events Interaction (v0) 4.1.0+3b89ecf63e fabric-game-rule-api-v1: Fabric Game Rule API (v1) 2.0.3+4fc5413f3e fabric-item-api-v1: Fabric Item API (v1) 11.5.20+d0c46b9e3e fabric-item-group-api-v1: Fabric Item Group API (v1) 4.2.36+4fc5413f3e fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.6.15+4ebb5c083e fabric-loot-api-v2: Fabric Loot API (v2) 3.0.73+3f89f5a53e fabric-loot-api-v3: Fabric Loot API (v3) 2.0.20+78c8b4663e fabric-message-api-v1: Fabric Message API (v1) 6.1.12+4ebb5c083e fabric-networking-api-v1: Fabric Networking API (v1) 5.1.5+ae1e07683e fabric-object-builder-api-v1: Fabric Object Builder API (v1) 21.1.39+4fc5413f3e fabric-particles-v1: Fabric Particles (v1) 4.2.11+4fc5413f3e fabric-recipe-api-v1: Fabric Recipe API (v1) 8.2.3+4ebb5c083e fabric-registry-sync-v0: Fabric Registry Sync (v0) 6.2.5+1718722b3e fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.1.43+4ebb5c083e fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 5.0.35+4fc5413f3e fabric-resource-loader-v0: Fabric Resource Loader (v0) 3.3.4+4fc5413f3e fabric-resource-loader-v1: Fabric Resource Loader (v1) 1.0.10+78c8b4663e fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.161+4fc5413f3e fabric-serialization-api-v1: Fabric Serialization API (v1) 1.0.5+4ebb5c083e fabric-tag-api-v1: Fabric Tag API (v1) 1.2.20+4fc5413f3e fabric-transfer-api-v1: Fabric Transfer API (v1) 6.0.25+4fc5413f3e fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 7.1.0+014c8cec3e fabric-language-kotlin: Fabric Language Kotlin 1.13.9+kotlin.2.3.10 org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 2.3.10 org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 2.3.10 org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 2.3.10 org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 2.3.10 org_jetbrains_kotlinx_atomicfu-jvm: atomicfu-jvm 0.31.0 org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm: kotlinx-coroutines-core-jvm 1.10.2 org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.10.2 org_jetbrains_kotlinx_kotlinx-datetime-jvm: kotlinx-datetime-jvm 0.7.1 org_jetbrains_kotlinx_kotlinx-io-bytestring-jvm: kotlinx-io-bytestring-jvm 0.8.2 org_jetbrains_kotlinx_kotlinx-io-core-jvm: kotlinx-io-core-jvm 0.8.2 org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm: kotlinx-serialization-cbor-jvm 1.10.0 org_jetbrains_kotlinx_kotlinx-serialization-core-jvm: kotlinx-serialization-core-jvm 1.10.0 org_jetbrains_kotlinx_kotlinx-serialization-json-jvm: kotlinx-serialization-json-jvm 1.10.0 fabricloader: Fabric Loader 0.18.4 mixinextras: MixinExtras 0.5.0 ferritecore: FerriteCore 8.2.0 forgeconfigapiport: Forge Config API Port 21.11.1 com_electronwill_night-config_core: core 3.8.3 com_electronwill_night-config_toml: toml 3.8.3 java: OpenJDK 64-Bit Server VM 21 lithium: Lithium 0.21.3+mc1.21.11 minecraft: Minecraft 1.21.11 mixintrace: MixinTrace 1.1.1+1.17 nochatreports: No Chat Reports 1.21.11-v2.18.0 yet_another_config_lib_v3: YetAnotherConfigLib 3.8.2+1.21.11-fabric com_twelvemonkeys_common_common-image: common-image 3.12.0 com_twelvemonkeys_common_common-io: common-io 3.12.0 com_twelvemonkeys_common_common-lang: common-lang 3.12.0 com_twelvemonkeys_imageio_imageio-core: imageio-core 3.12.0 com_twelvemonkeys_imageio_imageio-metadata: imageio-metadata 3.12.0 com_twelvemonkeys_imageio_imageio-webp: imageio-webp 3.12.0 org_quiltmc_parsers_gson: gson 0.2.1 org_quiltmc_parsers_json: json 0.2.1 Server Running: true Player Count: 0 / 20; [] Active Data Packs: vanilla, fabric-convention-tags-v2 Available Data Packs: fabric-convention-tags-v2, minecart_improvements, redstone_experiments, trade_rebalance, vanilla Enabled Feature Flags: minecraft:vanilla World Generation: Stable World Seed: 6449447579948116832 Suppressed Exceptions: ~~NONE~~ Is Modded: Definitely; Server brand changed to 'fabric' Type: Dedicated Server (map_server.txt)